What is happening
The areas affected include... Coastal Waters of Northern Puerto Rico out 10 NM... * At 530 PM AST, Doppler radar indicated a strong thunderstorms, capable of producing winds to around 30 knots. These strong thunderstorms were located over the nearshore waters of San Juan and Carolina moving east-northeast at 10 knots. Funnel clouds possible. Locations impacted include... Mainly open waters of Northern Puerto Rico out 10 NM.
Official instructions
Report severe weather to the Coast Guard or nearest law enforcement agency. They will relay your report to the National Weather Service office. Mariners can expect gusty winds, small hail, high waves, dangerous lightning and heavy rains. Boaters should seek safe harbor immediately until these storms pass. Intense lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects.
